X x xx shu shuttle lock



Dec. 22, 1925- 1,566,721

- J. C. AYOTTE SHUTTLE LOCK Filed Feb. 12, 1923 JOSEPH C. AYOT T E Patented Dec. 22, 19 25.

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SHUTTLE Loon:

npplication filed February 12, 1923. Serial'No. 618,651p

To allwhoni it may concern Be it known that I, JOSEPH :0. Armin, a citizen of the United 'States, residing at Biddeford, in the county of York and State of Maine, have invented certain new and useful Improvements-in .Shuttle Locks, of which the following is a specification.

This invention relates to checks or locks for shuttles and the primary object ofthe invention is to improve the construction of the said checks or looks whereby a simplified lock will be rovided, which will eliminate a number 0 necessary in such locks and reduce wear on the loom, the shuttle, and the said shuttle lock or check.

A. further object of the invention is to provide a rocking lock or check for shuttles embodying an adjustable leaf spring member carried by said check or look, which is so constructed as to increase the tension on the said lock when the shuttle comes into engagement therewith, thereby effectively bringing the shuttle to a stop and hold the same against accidental movement thereafter.

A still further object of the invention is to provide an improved shuttle check or look of the above character, which will be du-' rable and eflicient in use, one which will be simple and easy to manufacture, and one which can be placed upon the market at a reasonable cost. 7

With these and other objects in view th invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawings, in which drawings: a

Figure 1 is a plan view of the improved shuttle check or look showing the same in use.

Figure 2 is an edge elevation of the check or look. I

Figure 3 is a detail perspective view of the tension spring.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter A generally indicates the improved check or lock, which has been particularly made for use with the Crompton-Knowles loom, but it is to be understood that the same can be used with other types of looms. In view of the fact that the invention resides and includes the parts heretofore considered construction of a lock per se, the same has only bBGIl SllOW'IY with the :loom and ap or.

tionof a loom is of-course to.:be1 ofthe ordia nary or any preferred construction, The improvedjlock. A embodies the arm 5 having 'the arcuate extension 6': formed jon I one end thereof which carries the shoe 7. The shoe 7 is provided with theordinary type of friction pad 8, which as shown is preferably made of sole leather. The opposite end of the arm 5 is provided with a barrel 9 which receivesv a screw bolt 10. This bolt 10 forms means for attaching the device to the box plateof the loom and it is to be understood that the lock is adapted to rock upon said bolt, the bolt being provided with suitablelocking nuts 11 and 12 and spacing washers 13. If so desired the arcuate extension 6 can be provided with an outwardly extending ear 14, which can support an adjustable screw 15, which constitutes a stop for the lock and it is obvious that by adjusting the stop the swin ing movement of the lock can be limited. This screw is adapted to engage the binder portion of the loom. The adjusting screw can be provided with a suitable lock nut15 if so desired.

The tensioning means comprises a substantially heavy leaf spring 20 and this spring is preferably bowed throughout its j extend the attaching screws 23 which are threaded into the arm 5. This tensioning device is adapted to rest at a pointintermediate its ends upon the barrel 9 which can be notched to receive the same. The extreme outer end of the resilient tensioning device 20 is bent back upon itself to provide a right angularly extending foot 24 which can be provided with a guide lug 2,5. The foot 24 and the guide lug 25 are adapted to engage the binder portion of the loom, as will be hereinafter more fully described.

In operation of the improved shuttle check or look, when the shuttle comes to the side of the loom where the lock is attached, the same comes up against the binder and strikes the pad Scausing a pressure on the arm 5. which rocks the arm on the barrel 9-. This causes the free end ofthe tensioning device to press against the binder, which of course sets up a friction on the shuttle, thereby .locking'the shuttle against further moveinent, so that'the same becomesrigid and thus will not jump While the transfer from the empty bobbin to the full bobbin is'b'eing made.

It is obvious from the -foregoing that an exceptionally simple shuttle lock has been provided embodying a minimum number of parts and which will operate in an eflective and simple manner to carryout the purpose intended.

Changes in details may be made Without departing from the 'spirit or the scope of I this invention.

' WV'hat I claim as new is 15 a A lock for shuttles of looms compris ture.

ing a rocking body including "an; arm, a barrel formed on one end of the arm, a pivot bolt carried bysald barrel, an arouate rextension formedon-the opposite end of the arm, a shoe carried by said extension, a pad secured to said shoe, an arcuate resilient tensioning arm, means adjustably and detaohably connecting said arm to the arm of the rocking body, and a right angularly extending foot formed on the free: end of said tensioning arm.

In testimony JOSEPH 0. norm l whereof I aflix mysigna 

